Cross-site scripting (XSS) vulnerability in the default error page of Apache 2.0 before 2.0.43, and 1.3.x up to 1.3.26, when UseCanonicalName is "Off" and support for wildcard DNS is present, allows remote attackers to execute script as other web page visitors via the Host: header, a different vulnerability than CAN-2002-1157.
結論預警: CVE-2002-0840 綜合評估為高可利用風險（81/100）：CVSS 技術影響為中級，利用機率偏高（EPSS 94.01%，百分位 100%） 核心證據: 已收錄 1 筆公開利用參考（Exploit-DB）。 近一日 EPSS 上升 +3.82%，被利用關注度持續升高。 強制指令: 存在公開利用—請盤點暴露面、落實緩解措施並優先修補。
風險隨態勢動態變化；本站持續評估並同步更新本頁展示內容。
| EDB-ID | 來源 | 類型 | 公開時間 | 連結 |
|---|---|---|---|---|
| 21885 | exploit_db | edb | 2002-10-02 | Exploit-DB ↗ |
EPSS 日更估計相對被利用可能性；百分位表示該 CVE 在已評分漏洞中的相對排名（越高表示相對更嚴重）。
| # | 日期 | 舊 EPSS 分數 | 新 EPSS 分數 | 變化（新 − 舊） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 90.18% | 94.01% | +3.82% |
| 2 | 2026-05-07 | 91.10% | 90.18% | -0.92% |
| 3 | 2026-01-23 | — | 91.10% | — |
完整 EPSS 歷史 （共 20 筆）
該 CVE 的 CVSS 指標。
| 底座分 | 版本 | 嚴重度 | 向量 | 可利用性 | 影響 | 分數來源 |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2002-0840 not yet assigned priority: Debian including 1 source packages (apache2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2002-0840 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2002-0840 |
ubuntu
|
medium | CVE-2002-0840 medium priority: Ubuntu including 2 source packages (apache, apache2), 8 status rows across 4 suites (dapper, edgy, feisty, upstream): released 6, needs-triage 2. | https://ubuntu.com/security/CVE-2002-0840 |
Fixed in Apache HTTP Server 2.0.43 and 1.3.27: http://httpd.apache.org/security/vulnerabilities_20.html http://httpd.apache.org/security/vulnerabilities_13.html
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| apache | http_server | 1.3 | cpe:2.3:a:apache:http_server:1.3:*:*:*:*:*:*:* |
| apache | http_server | 1.3.1 | cpe:2.3:a:apache:http_server:1.3.1:*:*:*:*:*:*:* |
| apache | http_server | 1.3.3 | cpe:2.3:a:apache:http_server:1.3.3:*:*:*:*:*:*:* |
| apache | http_server | 1.3.4 | cpe:2.3:a:apache:http_server:1.3.4:*:*:*:*:*:*:* |
| apache | http_server | 1.3.6 | cpe:2.3:a:apache:http_server:1.3.6:*:*:*:*:*:*:* |
| apache | http_server | 1.3.9 | cpe:2.3:a:apache:http_server:1.3.9:*:*:*:*:*:*:* |
| apache | http_server | 1.3.11 | cpe:2.3:a:apache:http_server:1.3.11:*:*:*:*:*:*:* |
| apache | http_server | 1.3.12 | cpe:2.3:a:apache:http_server:1.3.12:*:*:*:*:*:*:* |
| apache | http_server | 1.3.14 | cpe:2.3:a:apache:http_server:1.3.14:*:*:*:*:*:*:* |
| apache | http_server | 1.3.17 | cpe:2.3:a:apache:http_server:1.3.17:*:*:*:*:*:*:* |
| apache | http_server | 1.3.18 | cpe:2.3:a:apache:http_server:1.3.18:*:*:*:*:*:*:* |
| apache | http_server | 1.3.19 | cpe:2.3:a:apache:http_server:1.3.19:*:*:*:*:*:*:* |
| apache | http_server | 1.3.20 | cpe:2.3:a:apache:http_server:1.3.20:*:*:*:*:*:*:* |
| apache | http_server | 1.3.22 | cpe:2.3:a:apache:http_server:1.3.22:*:*:*:*:*:*:* |
| apache | http_server | 1.3.23 | cpe:2.3:a:apache:http_server:1.3.23:*:*:*:*:*:*:* |
| apache | http_server | 1.3.24 | cpe:2.3:a:apache:http_server:1.3.24:*:*:*:*:*:*:* |
| apache | http_server | 1.3.25 | cpe:2.3:a:apache:http_server:1.3.25:*:*:*:*:*:*:* |
| apache | http_server | 1.3.26 | cpe:2.3:a:apache:http_server:1.3.26:*:*:*:*:*:*:* |
| apache | http_server | 2.0 | cpe:2.3:a:apache:http_server:2.0:*:*:*:*:*:*:* |
| apache | http_server | 2.0.28 | cpe:2.3:a:apache:http_server:2.0.28:*:*:*:*:*:*:* |
| apache | http_server | 2.0.32 | cpe:2.3:a:apache:http_server:2.0.32:*:*:*:*:*:*:* |
| apache | http_server | 2.0.35 | cpe:2.3:a:apache:http_server:2.0.35:*:*:*:*:*:*:* |
| apache | http_server | 2.0.36 | cpe:2.3:a:apache:http_server:2.0.36:*:*:*:*:*:*:* |
| apache | http_server | 2.0.37 | cpe:2.3:a:apache:http_server:2.0.37:*:*:*:*:*:*:* |
| apache | http_server | 2.0.38 | cpe:2.3:a:apache:http_server:2.0.38:*:*:*:*:*:*:* |
| apache | http_server | 2.0.39 | cpe:2.3:a:apache:http_server:2.0.39:*:*:*:*:*:*:* |
| apache | http_server | 2.0.40 | cpe:2.3:a:apache:http_server:2.0.40:*:*:*:*:*:*:* |
| apache | http_server | 2.0.41 | cpe:2.3:a:apache:http_server:2.0.41:*:*:*:*:*:*:* |
| apache | http_server | 2.0.42 | cpe:2.3:a:apache:http_server:2.0.42:*:*:*:*:*:*:* |
| oracle | application_server | 1.0.2 | cpe:2.3:a:oracle:application_server:1.0.2:*:*:*:*:*:*:* |
| oracle | application_server | 1.0.2.1s | cpe:2.3:a:oracle:application_server:1.0.2.1s:*:*:*:*:*:*:* |
| oracle | application_server | 1.0.2.2 | cpe:2.3:a:oracle:application_server:1.0.2.2:*:*:*:*:*:*:* |
| oracle | application_server | 9.0.2 | cpe:2.3:a:oracle:application_server:9.0.2:*:*:*:*:*:*:* |
| oracle | application_server | 9.0.2 | cpe:2.3:a:oracle:application_server:9.0.2:r2:*:*:*:*:*:* |
| oracle | application_server | 9.0.2.1 | cpe:2.3:a:oracle:application_server:9.0.2.1:*:*:*:*:*:*:* |
| oracle | database_server | 8.1.7 | cpe:2.3:a:oracle:database_server:8.1.7:*:*:*:*:*:*:* |
| oracle | database_server | 9.2.1 | cpe:2.3:a:oracle:database_server:9.2.1:*:*:*:*:*:*:* |
| oracle | database_server | 9.2.2 | cpe:2.3:a:oracle:database_server:9.2.2:*:*:*:*:*:*:* |
| oracle | oracle8i | 8.1.7 | cpe:2.3:a:oracle:oracle8i:8.1.7:*:*:*:*:*:*:* |
| oracle | oracle8i | 8.1.7.1 | cpe:2.3:a:oracle:oracle8i:8.1.7.1:*:*:*:*:*:*:* |
| oracle | oracle8i | 8.1.7_.0.0_enterprise | cpe:2.3:a:oracle:oracle8i:8.1.7_.0.0_enterprise:*:*:*:*:*:*:* |
| oracle | oracle8i | 8.1.7_.1.0_enterprise | cpe:2.3:a:oracle:oracle8i:8.1.7_.1.0_enterprise:*:*:*:*:*:*:* |
| oracle | oracle9i | 9.0 | cpe:2.3:a:oracle:oracle9i:9.0:*:*:*:*:*:*:* |
| oracle | oracle9i | 9.0.1 | cpe:2.3:a:oracle:oracle9i:9.0.1:*:*:*:*:*:*:* |
| oracle | oracle9i | 9.0.1.2 | cpe:2.3:a:oracle:oracle9i:9.0.1.2:*:*:*:*:*:*:* |
| oracle | oracle9i | 9.0.1.3 | cpe:2.3:a:oracle:oracle9i:9.0.1.3:*:*:*:*:*:*:* |
| oracle | oracle9i | 9.0.2 | cpe:2.3:a:oracle:oracle9i:9.0.2:*:*:*:*:*:*:* |